DTC Troubleshooting: P0602 (196)

DTC P0602:
 ECM Programming Error
NOTE:
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0602 indicated?
YES -
Substitute a known-good ECM, then recheck. If the symptom/indication goes away with a known-good ECM, replace the original ECM.
NO -
Troubleshooting is complete.■